A High Precision Design Method for Airborne High Frequency Power Supply

Based on the high precision and simplification requirements of multi-sensor centralized power supply for aircraft actuator system, a high precision design method of airborne high-frequency power supply is proposed in this paper. The circuit used the hardware logic scheme to obtain accurate sine instructions, which can improve the precision of sine power supply frequency and anti-interference ability, solve the problem of low precision of power supply frequency and easy interference in the centralized power supply of aircraft multi-sensors, and ensure the measurement accuracy of sensors. The linear amplifying circuit is used to ensure the output quality, and the power amplification is achieved by using the over-current locking control and overcoming the crossover distortion, which improves the voltage accuracy and power supply stability, and is used to solve the problems of complex control and low voltage accuracy of the centralized power supply network. The reactive power compensation method with damping is adopted to give consideration to reactive power compensation efficiency and ensure the system stability, which can realize the reactive power compensation of centralized power supply, solve the problem of sinusoidal distortion of power output, and provide strong support for the airborne products “small, low and light”.